Barn conversion heating options

Tarbh

If I go with the oil option...

I'm thinking wet UFH rather than radiators, do I still require a HW cylinder for DHW or will a combi boiler be suffice?.
What about heating for upstairs?, would the UFH heat the whole property or would i still need rads upstairs?.
The total floor area is approximately 90m2, upstairs the rooms are combed so overall area is less than downstairs.
Open plan lounge / kitchen, bedroom & bathroom downstairs, with 2 bedrooms and a bathroom upstairs.  

The barn is basically a blank canvas, upstairs was used as a flat in the past and downstairs it's a stone floor with bare stone walls.

 

Tarbh

Flight3287462 said:

OP if the house was your own main dwelling then I would advise GSHP assuming you have a bot of land for the array.  GSHP is the best COP you can get.

Second would be ASHP and would be suitable for this.

To me storage heaters are a bit last century and with the rumour of economy 7 being phased out may not be a good idea.

Anything using oil has potential to get very expensive going forward.

So for me a decent log burner (people like a fire and on holiday probably even more so) and ASH would be my thoughts.

Apologies, you posted when i was writing my last post...thanks for your reply...i do like the thought of a log burner, it would require flue as there are no chimneys in the barn.

BUFF

Tarbh said:

If I go with the oil option...

I'm thinking wet UFH rather than radiators, do I still require a HW cylinder for DHW or will a combi boiler be suffice?.
What about heating for upstairs?, would the UFH heat the whole property or would i still need rads upstairs?.
The total floor area is approximately 90m2, upstairs the rooms are combed so overall area is less than downstairs.
Open plan lounge / kitchen, bedroom & bathroom downstairs, with 2 bedrooms and a bathroom upstairs.  

The barn is basically a blank canvas, upstairs was used as a flat in the past and downstairs it's a stone floor with bare stone walls.

 

Depends upon your HW demand (e.g. will you ever have 2 baths/showers running at the same time?) but you can get some combis with very high outputs to DHW or indeed storage combis like the Worcester Highflow in my house (others e.g. Viessman also do similar).
This will depend upon how well insulated your house ends up but at a guess I think that you will need some heat source(s) upstairs. 

p.s. if you have the space it may also be worth investigating biomass

mrmmhf

billy2shots said:

I'm in the very early stages of looking to do a conversation from my steel frame barn. Need another year to go for the Permitted development Q route..

Lightly looked at heating I have no gas but mains electricity. 

Why have air source heat pumps been mentioned several times but not ground source?
Presumably ground source is more expensive? 

From a tiny amount of research, gshp with underfloor heating seems the go to method.

This is a good explanation detailing the difference between ASHP and GSHP: https://renewableheatinghub.co.uk/what-is-the-difference-between-air-source-and-ground-source

Tarbh

Things haven't really progressed since I last commented on this thread...and i still await quotes for oil fired UHF and conventional heating.

Another train of thought now is to install Solar PV / battery storage with clay core or gel electric heaters and DHW heated by immersion linked to the solar set up.
Being a holiday let it will be predominately empty during the day, and with modern insulation hopefully the evening heating demand won't be too great, (We are also considering installing a log burner), plus the DHW will get heated via solar during the day.
As stated previously the main letting period will be from April to September, so the predominately warmer part of the year.
The roof is south facing with a 45 degree pitch with minimal shading, with approximately 25m2 of useable roof area.

I'm not looking at any payback period, as the property requires some type of heating whatever it turns out to be, and it will be run as a business so I can sacrifice some profit margin to support the energy costs.

As an aside, in future i'll probably change one of our ICE cars to an EV, so could use this set for charging. 

Again, i would welcome any thoughts on this proposal.